BMW X5 E70 E90 E92 LCI F10 N57 EGR Gas Cooler Exhaust Manifold Cooler 7805446

BMW X5 E70 E90 E92 LCI F10 N57 EGR Gas Cooler Exhaust Manifold Cooler is an exhaust gas recirculation system component designed for BMW diesel engines, supporting stable engine operation and reducing exhaust emissions. Thanks to its precise OEM design, the cooler works in conjunction with the intake manifold, ensuring effective cooling of the exhaust gases directed back into the engine. This solution helps maintain proper EGR system performance and promotes consistent torque characteristics.

Specifications and technical data

• SKU: 7805446-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805446
• Substitutable numbers: 11717805446, 7805446
• Fuel type: Diesel
• Category: EGR Parts & Valves

Purpose and role in the EGR system

The presented EGR gas cooler is designed to work with Diesel engines in selected BMW models, including the X5 E70 series as well as the 3 and 5 series. Its task is to cool the exhaust gases returned to the intake manifold, which allows for a more controlled combustion process. A properly functioning EGR cooler reduces the formation of nitrogen oxides, supports compliance with emission standards, and helps maintain a stable engine operating temperature.

Thanks to its factory-fit design for the intake and exhaust gas recirculation system, this component works with other parts from the EGR valves and parts group, minimizing the risk of leaks and engine control unit errors related to incorrect exhaust gas flow.

Construction and fitment for Diesel engines

The EGR gas cooler in this configuration is structurally adapted to the thermal loads typical of modern BMW diesel units. The flow channel layout and heat exchange surface are optimized for operation across a wide range of loads, from low engine speeds to intensive highway driving. This solution helps maintain a stable temperature of the exhaust gases directed to the manifold, which translates into predictable engine response to load.

Proper geometric fitment to the intake manifold and other EGR system components facilitates installation and allows for the preservation of the factory exhaust gas flow path. This is especially important in units with complex auxiliary equipment, where minor deviations can cause stress or leaks.

Characteristics of the used component

The offered EGR gas cooler is a used component, sourced from dismantling, which allows for combining original fitment with a cost-effective purchase. This type of component is a good choice in situations where the existing part has developed leaks, overheated, or seized, and the priority is to maintain the factory specifications of the exhaust gas recirculation system. A properly selected part from this group helps reduce the risk of the engine entering limp mode, power loss, or increased fuel consumption resulting from improper EGR operation.

Replacing the EGR gas cooler with an original used component is particularly beneficial for vehicles used intensively, where both durability and service economy matter. Maintaining compliance with the factory system design helps avoid issues with ECU adaptation and unwanted error messages.

Benefits of using an original EGR cooler

Using an original EGR gas cooler in a BMW diesel engine provides a number of practical benefits:

• maintaining proper operation of the exhaust gas recirculation system and stable combustion parameters,
• reducing the risk of exhaust gas overheating in the intake manifold,
• maintaining compliance with the factory operating characteristics of the engine,
• reducing the likelihood of diagnostic errors related to the EGR.

For users considering broader use of original parts from dismantling in premium class cars, the information contained in the article Mercedes – comfort, prestige and durability. Why is it worth choosing original used parts? may be useful, where the advantages of using factory-made used components in the context of costs and durability are discussed.

Expanding the EGR system in BMW

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as EGR coolers, exhaust gas recirculation valves, or EGR system hoses, check the available parts in the BMW EGR valves and parts category.